Human evolution is the evolutionary process that led to the emergence of Homo sapiens as a distinct species of the hominid family.
Dryopithecus, Ramapithecus, Australopithecines, Homo habilis, Homo erectus, Homo sapiens neanderthalensis are the ancestors of modern man (Homo sapiens) in chronological order.
Ramapithecus was a man-like primate which lived about 14-15 million years ago.
Australopithecines lived about 2 million years ago. They had characters of both ape and man.
Homo habilis was the first human-like being which existed about 2 million years ago.
Homo erectus existed about 1.5 million years ago.
The order of human evolution is
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1241052/original_01.JPG)
Hence, Ramapithecus is the most primitive ancestor of Homo sapiens from the given options.